A young seal's flipper muscles become larger after repeated swimming. A student claims that its pups will therefore inherit larger flipper muscles and that the seal population will evolve.
Explain why the student's reasoning is not sufficient to show that the seal population will evolve.
122 exam-style questions on OCR GCSE Biology 5.2 Natural selection and evolution, covering 5.2.1 Genetic variation within a population, 5.2.2 Developments in classification systems, 5.2.3 How evolution occurs through natural selection, 5.2.4 Evolution as change over time, 5.2.5 Evidence for evolution, and 5.2.6 Darwin and Wallace. Each one has a worked solution and a mark scheme showing where the marks go.